Vue application example code based on axios request encapsulation

const instance = axios.create({
{
   // `url` is the server URL to use for the request
  url: '/user',

  // `method` is the method used when creating the request method: 'get', // default

  // `baseURL` will be automatically prepended to `url` unless `url` is an absolute URL.
  // It is convenient to pass relative URLs to the methods of the axios instance by setting a `baseURL`
  baseURL: 'https://some-domain.com/api/',

  // `transformRequest` allows modification of request data before sending to the server // Can only be used with 'PUT', 'POST' and 'PATCH' request methods // The functions in the following array must return a string, ArrayBuffer, or Stream
  transformRequest: [function (data, headers) {
    //Perform arbitrary conversion on data return data;
  }],

  // `transformResponse` allows modifying the response data before passing it to then/catch transformResponse: [function (data) {
    //Perform arbitrary conversion on data return data;
  }],

  // `headers` is the custom request header that will be sent headers: {'X-Requested-With': 'XMLHttpRequest'},

  // `params` are the URL parameters that will be sent with the request // must be a plain object or a URLSearchParams object params: {
    ID: 12345
  },

   // `paramsSerializer` is a function responsible for serializing `params` // (eg https://www.npmjs.com/package/qs, http://api.jquery.com/jquery.param/)
  paramsSerializer: function(params) {
    return Qs.stringify(params, {arrayFormat: 'brackets'})
  },

  // `data` is the data to be sent as the request body // Only applies to request methods 'PUT', 'POST', and 'PATCH'
  // When `transformRequest` is not set, it must be one of the following types:
  // - string, plain object, ArrayBuffer, ArrayBufferView, URLSearchParams
  // - Browser-specific: FormData, File, Blob
  // - Node specific: Stream
  data: {
    firstName: 'Fred'
  },

  // `timeout` specifies the number of milliseconds for the request to timeout (0 means no timeout)
  // If the request takes longer than `timeout`, the request will be interrupted timeout: 1000,

   // `withCredentials` indicates whether credentials are required for cross-domain requests withCredentials: false, // default

  // `adapter` allows custom request handling to make testing easier // Returns a promise with a valid response (see [response docs](#response-api)).
  adapter: function (config) {
    /* ... */
  },

 // `auth` indicates that HTTP Basic Authentication should be used, and provides credentials // This will set an `Authorization` header, overwriting any existing custom `Authorization` header set using `headers` auth: {
    username: 'janedoe',
    password: 's00pers3cret'
  },

   // `responseType` indicates the data type of the server response, which can be 'arraybuffer', 'blob', 'document', 'json', 'text', 'stream'
  responseType: 'json', // default

  // `responseEncoding` indicates encoding to use for decoding responses
  // Note: Ignored for `responseType` of 'stream' or client-side requests
  responseEncoding: 'utf8', // default

   // `xsrfCookieName` is the name of the cookie used as the value of the xsrf token xsrfCookieName: 'XSRF-TOKEN', // default

  // `xsrfHeaderName` is the name of the http header that carries the xsrf token value
  xsrfHeaderName: 'X-XSRF-TOKEN', // default

   // `onUploadProgress` allows handling progress events for uploads onUploadProgress: function (progressEvent) {
    // Do whatever you want with the native progress event
  },

  // `onDownloadProgress` allows handling progress events for download onDownloadProgress: function (progressEvent) {
    // Handling of native progress events},

   // `maxContentLength` defines the maximum size of the response content maxContentLength: 2000,

  // `validateStatus` defines whether to resolve or reject the promise for a given HTTP response status code. If `validateStatus` returns `true` (or is set to `null` or `undefined`), the promise will be resolved; otherwise, the promise will be rejected.
  validateStatus: function (status) {
    return status >= 200 && status < 300; // default
  },

  // `maxRedirects` defines the maximum number of redirects to follow in node.js // If set to 0, no redirects will be followed maxRedirects: 5, // default

  // `socketPath` defines a UNIX Socket to be used in node.js.
  // eg '/var/run/docker.sock' to send requests to the docker daemon.
  // Only either `socketPath` or `proxy` can be specified.
  // If both are specified, `socketPath` is used.
  socketPath: null, // default

  // `httpAgent` and `httpsAgent` are used in node.js to define custom agents to use when executing http and https respectively. Allows configuration options like this:
  // `keepAlive` is not enabled by default httpAgent: new http.Agent({ keepAlive: true }),
  httpsAgent: new https.Agent({ keepAlive: true }),

  // 'proxy' defines the hostname and port of the proxy server // `auth` indicates that HTTP basic authentication should be used to connect to the proxy, and provide credentials // This will set a `Proxy-Authorization` header, overriding any existing custom `Proxy-Authorization` header set using `header`.
  proxy: {
    host: '127.0.0.1',
    port: 9000,
    auth:
      username: 'mikeymike',
      password: 'rapunz3l'
    }
  },

  // `cancelToken` specifies the cancel token used to cancel the request
  // (See the Cancellation section below for more information)
  cancelToken: new CancelToken(function (cancel) {
  })
}
}).then(function(response){
// `data` The response data provided by the server: {},

  // `status` The HTTP status code from the server response status: 200,

  // `statusText` HTTP status information from the server response statusText: 'OK',

  // `headers` Server response headers: {},

   // `config` is the configuration information provided for the request config: {},
 // 'request'
  // `request` is the request that generated this response
  // It is the last ClientRequest instance in node.js (in redirects)
  // and an XMLHttpRequest instance the browser
  request: {}
});

instance.get('/longRequest', {
 timeout: 5000
});

instance.defaults.timeout = 2500;

var instance = axios.create();

// Add request interceptor axios.interceptors.request.use(function (config) {
    // Do something before sending the request return config;
  }, function (error) {
    // Do something with request error return Promise.reject(error);
  });

// Add response interceptor axios.interceptors.response.use(function (response) {
    // Do something with the response data return response;
  }, function (error) {
    switch (err.response.status) {
      case 400:
        err.message = 'Error request';
        break;
      case 401:
        err.message = 'Unauthorized, please log in again';
        break;
      case 403:
        err.message = 'Access denied';
        break;
      case 404:
        err.message = 'Request error, the resource was not found';
        break;
      case 405:
        err.message = 'Request method not allowed';
        break;
      case 408:
        err.message = 'Request timeout';
        break;
       case 415:
        err.message = 'The server cannot process the media format attached to the request';
        break;
      case 500:
        err.message = 'Server error';
        break;
      case 501:
        err.message = 'Network not implemented';
        break;
      case 502:
        err.message = 'Network error';
        break;
      case 503:
        err.message = 'Service unavailable';
        break;
      case 504:
        err.message = 'Network timeout';
        break;
      case 505:
        err.message = 'The http version does not support this request';
        break;
      default:
        err.message = `Connection error ${err.response.status}`;
    }
  } else {
    err.message = 'Failed to connect to the server';
  }
  return Promise.resolve(err.response);
  });

axios.get({
	method:'get',
	url:'xxxx',
	reponseType:'', //corresponding type parems:{//input parameter }
}).then(function(response){
	....
})

axios({
  method: 'post',
  url: '/user/12345',
  data: {
    firstName: 'Fred',
    lastName: 'Flintstone'
  }
}).then(function(res){

});

axios({
  method: 'delete',
  url: '/user/12345',
 //Parameter 1: Mount to the end of the request parmes: {
 }
 //Parameter 2: Mount into the request body data{
}
}).then(function(res){

});

axios({
  method: 'put',
  url: '/user/12345',
 data{
}
}).then(function(res){

});

axios({
  method: 'patch',
  url: '/user/12345',
 data{
}
}).then(function(res){

});

axios.all(iterable)
axios.spread(callback)
function getUserAccount() {
return axios.get('/user/12345');
}

function getUserPermissions() {
  return axios.get('/user/12345/permissions');
}
//Request array axios.all([getUserAccount(), getUserPermissions()])
  .then(axios.spread(function (acct, perms) { // response body of the corresponding request // both requests are now completed }));

Import static resources import axios from 'axios';
 import qs from 'qs';
import apiMap from './apiMap';

Set the global default parameter axios.defaults.withCredentials = false;
axios.defaults.headers.post['Content-Type'] = 'application/json; charset=UTF-8';

Set the default request parameters const instance = axios.create({
    baseURL: process.env.API_ROOT,
    timeout: 15 * 1000,
    auth:
    	...
    },
    headers: {
      'Content-Type': 'application/json;charset=utf-8',
      'X-Requested-With': 'XMLHttpRequest',
    },
  },
);
Set up request interception:
instance.interceptors.request.use(function (config) {
...
})
Set up corresponding interception:
// Response interceptor is exception handlinginstance.interceptors.response.use(response =>
   response
, (err) => {
  if (err && err.response) {
    switch (err.response.status) {
      case 400:
        err.message = 'Error request';
        break;
      case 401:
        err.message = 'Unauthorized, please log in again';
        break;
      case 403:
        err.message = 'Access denied';
        break;
      case 404:
        err.message = 'Request error, the resource was not found';
        break;
      case 405:
        err.message = 'Request method not allowed';
        break;
      case 408:
        err.message = 'Request timeout';
        break;
       case 415:
        err.message = 'The server cannot process the media format attached to the request';
        break;
      case 500:
        err.message = 'Server error';
        break;
      case 501:
        err.message = 'Network not implemented';
        break;
      case 502:
        err.message = 'Network error';
        break;
      case 503:
        err.message = 'Service unavailable';
        break;
      case 504:
        err.message = 'Network timeout';
        break;
      case 505:
        err.message = 'The http version does not support this request';
        break;
      default:
        err.message = `Connection error ${err.response.status}`;
    }
  } else {
    err.message = 'Failed to connect to the server';
  }
  return Promise.resolve(err.response);
});
Encapsulation interface request:
let api={
	/**
	
	* get method encapsulation	
	* @param url
	
	* @param params
	
	* @returns {Promise}
	
	*/
	
	get (url, params = {}) {
	  return new Promise((resolve, reject) => {
		  instance.get(apiMap[url],params).then(res => {
	      resolve(res.data)
	    }).catch(err => {
	      reject(err)
	    })
	  })
	},
	
	/**
	
	* post
	
	* @param url
	
	* @param params
	
	* @returns {Promise}
	
	*/
	
	post (url, params = {}) {
	  return new Promise((resolve, reject) => {
	    instance.post(apiMap[url], params)
	      .then(res => {
	        resolve(res.data)
	      }, err => {
	        reject(err)
	      })
	  })
	},
	
	/**
	
	* delete method encapsulation	
	* @param url
	
	* @param params
	
	* @returns {Promise}
	
	*/
	
	delete (url, params = {}) {
	  return new Promise((resolve, reject) => {
	    instance.delete(apiMap[url] ,params).then(res => {
	      resolve(res.data)
	    }).catch(err => {
	      reject(err)
	    })
	  })
	},
	
	/**
	
	* put method encapsulation	
	* @param url
	
	* @param params
	
	* @returns {Promise}
	
	*/
	
	put (url, params = {}) {
	  return new Promise((resolve, reject) => {
	    instance.put(apiMap[url], params).then(res => {
	      resolve(res.data)
	    }).catch(err => {
	      reject(err)
	    })
	  })
	},
	
	/**
	
	* Patch method encapsulation	
	* @param url
	
	* @param params
	
	* @returns {Promise}
	
	*/
	
	patch (url, params = {}) {
	  return new Promise((resolve, reject) => {
	    instance.patch(apiMap[url], params).then(res => {
	      resolve(res.data)
	    }).catch(err => {
	      reject(err)
	    })
	  })
	}
}

export default api;

export default {
  // Theme list key: 'path'
};

Import Vue resourcesimport Vue from 'vue'
Import the viewui plug-in import ViewUI from 'view-design';
Import viewuicss file import 'view-design/dist/styles/iview.css';
Import file|No file suffix is ​​required by defaultimport Api from '/index';
Global binding | $ sets the scope for instance properties Vue.prototype.$api = Api;

Create a configuration file index.js:
import Vue from 'vue';
import Vuex from 'vuex';
import State from './state';
Vue.use(Vuex);
const store = new Vuex.Store(State);
export default store;
Create a global parameter detailed file state.js
export default {
	state: { //Put global parameters here test: 0
	},
	mutations:{ //Set value test(state,value)=>state.test=value;
	},
	getters:{//return value test: state =>state.test;
	}
};
Calling method:
var data = this.$store.getter.test;
var data = this.$store.commit('test', data);